/*
 * Copyright (c) 2019, 2019, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package com.oracle.svm.core.windows;

import org.graalvm.nativeimage.c.type.CCharPointer;
import org.graalvm.nativeimage.c.type.CCharPointerPointer;
import org.graalvm.word.PointerBase;
import org.graalvm.word.SignedWord;
import org.graalvm.word.UnsignedWord;

import com.oracle.svm.core.Uninterruptible;
import com.oracle.svm.core.feature.AutomaticallyRegisteredImageSingleton;
import com.oracle.svm.core.headers.LibCSupport;
import com.oracle.svm.core.traits.BuiltinTraits.AllAccess;
import com.oracle.svm.core.traits.BuiltinTraits.SingleLayer;
import com.oracle.svm.core.traits.SingletonLayeredInstallationKind.Disallowed;
import com.oracle.svm.core.traits.SingletonTraits;
import com.oracle.svm.core.windows.headers.WindowsLibC;

@SingletonTraits(access = AllAccess.class, layeredCallbacks = SingleLayer.class, layeredInstallationKind = Disallowed.class)
@AutomaticallyRegisteredImageSingleton(LibCSupport.class)
class WindowsLibCSupport implements LibCSupport {
    @Override
    @Uninterruptible(reason = "Called from uninterruptible code.", mayBeInlined = true)
    public int errno() {
        return WindowsLibC._errno().read();
    }

    @Override
    @Uninterruptible(reason = "Called from uninterruptible code.", mayBeInlined = true)
    public void setErrno(int value) {
        WindowsLibC._errno().write(value);
    }

    @Override
    @Uninterruptible(reason = "Called from uninterruptible code.", mayBeInlined = true)
    public <T extends PointerBase> T memcpy(T dest, PointerBase src, UnsignedWord n) {
        return WindowsLibC.memcpy(dest, src, n);
    }

    @Override
    @Uninterruptible(reason = "Called from uninterruptible code.", mayBeInlined = true)
    public <T extends PointerBase> int memcmp(T s1, T s2, UnsignedWord n) {
        return WindowsLibC.memcmp(s1, s2, n);
    }

    @Override
    @Uninterruptible(reason = "Called from uninterruptible code.", mayBeInlined = true)
    public <T extends PointerBase> T memmove(T dest, PointerBase src, UnsignedWord n) {
        return WindowsLibC.memmove(dest, src, n);
    }

    @Override
    @Uninterruptible(reason = "Called from uninterruptible code.", mayBeInlined = true)
    public <T extends PointerBase> T memset(T s, SignedWord c, UnsignedWord n) {
        return WindowsLibC.memset(s, c, n);
    }

    @Override
    @Uninterruptible(reason = "Called from uninterruptible code.", mayBeInlined = true)
    public <T extends PointerBase> T malloc(UnsignedWord size) {
        return WindowsLibC.malloc(size);
    }

    @Override
    @Uninterruptible(reason = "Called from uninterruptible code.", mayBeInlined = true)
    public <T extends PointerBase> T calloc(UnsignedWord nmemb, UnsignedWord size) {
        return WindowsLibC.calloc(nmemb, size);
    }

    @Override
    @Uninterruptible(reason = "Called from uninterruptible code.", mayBeInlined = true)
    public <T extends PointerBase> T realloc(PointerBase ptr, UnsignedWord size) {
        return WindowsLibC.realloc(ptr, size);
    }

    @Override
    @Uninterruptible(reason = "Called from uninterruptible code.", mayBeInlined = true)
    public void free(PointerBase ptr) {
        WindowsLibC.free(ptr);
    }

    @Override
    @Uninterruptible(reason = "Called from uninterruptible code.", mayBeInlined = true)
    public void exit(int status) {
        WindowsLibC.exit(status);
    }

    @Override
    @Uninterruptible(reason = "Called from uninterruptible code.", mayBeInlined = true)
    public UnsignedWord strlen(CCharPointer str) {
        return WindowsLibC.strlen(str);
    }

    @Override
    @Uninterruptible(reason = "Called from uninterruptible code.", mayBeInlined = true)
    public CCharPointer strdup(CCharPointer str) {
        return WindowsLibC.strdup(str);
    }

    @Override
    @Uninterruptible(reason = "Called from uninterruptible code.", mayBeInlined = true)
    public int strcmp(CCharPointer s1, CCharPointer s2) {
        return WindowsLibC.strcmp(s1, s2);
    }

    @Override
    @Uninterruptible(reason = "Called from uninterruptible code.", mayBeInlined = true)
    public int isdigit(int c) {
        return WindowsLibC.isdigit(c);
    }

    @Override
    @Uninterruptible(reason = "Called from uninterruptible code.", mayBeInlined = true)
    public UnsignedWord strtoull(CCharPointer string, CCharPointerPointer endPtr, int base) {
        return WindowsLibC.strtoull(string, endPtr, base);
    }
}
